I had a Strange Sights token and went to the vault with it. Pulled a 2* Wolverine with that familiar Iron Man thanking me for the support giving me a “little someone extra” what we usually only see after getting a reward for competing a mission. Odd huh?
Clicked to claim the reward and bonus and was a bit disappointed I actually didn’t get a bonus at all…
…untill I restarted the game and had a 10HP bonus wait for me.
I had the same thing happen to me twice within a week a couple of months ago, both times from vault pulls. No idea what triggered it, wouldn’t mind a repeat though 
Probably some order of operations shenanigans again.
I’m guessing overlap daily supply rollover coupled with first guaranteed intercept of the day.
I don’t recall for sure, but I think I had this happen a while ago. I don’t have the HP or Tokens to check right now, but I think the process might be a little different for Vaults than for Stores. I’ll poke at it after I get my Taco Tokens tomorrow.
It’s been months, but I’ve seen this happen once or twice in the past.
OK, Tokens don’t do it, but when you go to buy with HP, the Stores say you’re going to “Open a Cover Pack”, while the Vaults say you’re going to “Take a Reward”. There may be some shared code from the Node Rewards or something that’s causing this to come up occasionally.